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          <h1 class="post-title" itemprop="name headline">Android-Animation(动画)---基础一</h1>
        

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        <p><strong>动画分类:</strong></p>
<ul>
<li>传统动画(帧动画(Frame Animation)/ 补间动画(Tweened Animation))。</li>
<li>属性动画(Attribute Animation)</li>
</ul>
<a id="more"></a>
<ol>
<li>帧动画<br>帧动画是将图片一张一张的连续播放，适当的速度，让人感觉是连续的动画。<br>xml文件<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br></pre></td><td class="code"><pre><span class="line">&lt;?xml version=&quot;1.0&quot; encoding=&quot;utf-8&quot;?&gt;</span><br><span class="line">&lt;animation-list xmlns:android=&quot;http://schemas.android.com/apk/res/android&quot;</span><br><span class="line">    android:oneshot=&quot;true&quot;&gt;</span><br><span class="line">  &lt;!--oneshot为true则动画只执行一遍, 为false则重复执行--&gt;</span><br><span class="line"></span><br><span class="line">  &lt;item android:drawable=&quot;@color/md_red_50&quot;</span><br><span class="line">      android:duration=&quot;200&quot;/&gt;</span><br><span class="line">  &lt;item android:drawable=&quot;@color/md_red_100&quot;</span><br><span class="line">      android:duration=&quot;200&quot;/&gt;</span><br><span class="line">  &lt;item android:drawable=&quot;@color/md_red_200&quot;</span><br><span class="line">      android:duration=&quot;200&quot;/&gt;</span><br><span class="line">  &lt;item android:drawable=&quot;@color/md_red_300&quot;</span><br><span class="line">      android:duration=&quot;200&quot;/&gt;</span><br><span class="line">  &lt;item android:drawable=&quot;@color/md_red_400&quot;</span><br><span class="line">      android:duration=&quot;200&quot;/&gt;</span><br><span class="line">  &lt;item android:drawable=&quot;@color/md_red_500&quot;</span><br><span class="line">      android:duration=&quot;200&quot;/&gt;</span><br><span class="line">  &lt;item android:drawable=&quot;@color/md_red_600&quot;</span><br><span class="line">      android:duration=&quot;200&quot;/&gt;</span><br><span class="line">  &lt;item android:drawable=&quot;@color/md_red_700&quot;</span><br><span class="line">      android:duration=&quot;200&quot;/&gt;</span><br><span class="line">  &lt;item android:drawable=&quot;@color/md_red_800&quot;</span><br><span class="line">      android:duration=&quot;200&quot;/&gt;</span><br><span class="line">  &lt;item android:drawable=&quot;@color/md_red_900&quot;</span><br><span class="line">      android:duration=&quot;200&quot;/&gt;</span><br><span class="line"></span><br><span class="line">&lt;/animation-list&gt;</span><br></pre></td></tr></table></figure>
</li>
</ol>
<p>Activity内容<br><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br></pre></td><td class="code"><pre><span class="line">private ImageView mIvFrame;</span><br><span class="line">mIvFrame = (ImageView) this.findViewById(R.id.iv_frame);</span><br><span class="line">mIvFrame.setImageResource(R.drawable.frame_list);</span><br><span class="line">AnimationDrawable animationDrawable = (AnimationDrawable) mIvFrame.getDrawable();</span><br><span class="line">animationDrawable.start();</span><br></pre></td></tr></table></figure></p>
<ol start="2">
<li>补间动画</li>
</ol>
<ul>
<li>Alpha(淡入淡出)</li>
<li>Translate(位移)</li>
<li>Scale(缩放大小)</li>
<li>Rotate(旋转)</li>
</ul>
<p>(1) Alpha(淡入淡出)<br><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br></pre></td><td class="code"><pre><span class="line">&lt;?xml version=&quot;1.0&quot; encoding=&quot;utf-8&quot;?&gt;</span><br><span class="line">&lt;alpha xmlns:android=&quot;http://schemas.android.com/apk/res/android&quot;</span><br><span class="line">    android:fromAlpha=&quot;0.0&quot;</span><br><span class="line">    android:toAlpha=&quot;1.0&quot;</span><br><span class="line">    android:duration=&quot;2000&quot;</span><br><span class="line">    android:interpolator=&quot;@android:anim/accelerate_decelerate_interpolator&quot;/&gt;</span><br></pre></td></tr></table></figure></p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br></pre></td><td class="code"><pre><span class="line">  /**补间动画*/</span><br><span class="line">private ImageView mIvTweened;</span><br><span class="line">mIvTweened = (ImageView) this.findViewById(R.id.iv_tween);</span><br><span class="line">// 淡入淡出</span><br><span class="line">//Animation animation = AnimationUtils.loadAnimation(this, R.anim.alpha);</span><br><span class="line">mIvTweened.startAnimation(animation);</span><br></pre></td></tr></table></figure>
<p>(2) Translate(位移)<br><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br></pre></td><td class="code"><pre><span class="line">&lt;translate xmlns:android=&quot;http://schemas.android.com/apk/res/android&quot;</span><br><span class="line">    android:fromXDelta=&quot;0.0&quot;</span><br><span class="line">    android:toXDelta=&quot;100.0&quot;</span><br><span class="line">    android:toYDelta=&quot;100.0&quot;</span><br><span class="line">    android:fromYDelta=&quot;0.0&quot;</span><br><span class="line">    android:duration=&quot;2000&quot;</span><br><span class="line">    android:interpolator=&quot;@android:anim/accelerate_interpolator&quot;</span><br><span class="line">    /&gt;</span><br></pre></td></tr></table></figure></p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br></pre></td><td class="code"><pre><span class="line">  /**补间动画*/</span><br><span class="line">private ImageView mIvTweened;</span><br><span class="line">mIvTweened = (ImageView) this.findViewById(R.id.iv_tween);</span><br><span class="line">// 淡入淡出</span><br><span class="line">//Animation animation = AnimationUtils.loadAnimation(this, R.anim.translate);</span><br><span class="line">mIvTweened.startAnimation(animation);</span><br></pre></td></tr></table></figure>
<p>(3) Scale(缩放大小)<br><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br></pre></td><td class="code"><pre><span class="line">&lt;scale xmlns:android=&quot;http://schemas.android.com/apk/res/android&quot;</span><br><span class="line">    android:fromXScale=&quot;0.0&quot;</span><br><span class="line">    android:toXScale=&quot;1.0&quot;</span><br><span class="line">    android:fromYScale=&quot;0.0&quot;</span><br><span class="line">    android:toYScale=&quot;1.0&quot;</span><br><span class="line">    android:pivotX=&quot;50%&quot;</span><br><span class="line">    android:pivotY=&quot;50%&quot;</span><br><span class="line">    android:duration=&quot;2000&quot;</span><br><span class="line">    /&gt;</span><br></pre></td></tr></table></figure></p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br></pre></td><td class="code"><pre><span class="line">  /**补间动画*/</span><br><span class="line">private ImageView mIvTweened;</span><br><span class="line">mIvTweened = (ImageView) this.findViewById(R.id.iv_tween);</span><br><span class="line">// 淡入淡出</span><br><span class="line">//Animation animation = AnimationUtils.loadAnimation(this, R.anim.scale);</span><br><span class="line">mIvTweened.startAnimation(animation);</span><br></pre></td></tr></table></figure>
<p>(4) Rotate(旋转)<br><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br></pre></td><td class="code"><pre><span class="line">&lt;rotate xmlns:android=&quot;http://schemas.android.com/apk/res/android&quot;</span><br><span class="line">    android:pivotX=&quot;50%&quot;</span><br><span class="line">    android:pivotY=&quot;50%&quot;</span><br><span class="line">    android:drawable=&quot;@color/md_green_A700&quot;</span><br><span class="line">    android:fromDegrees=&quot;0.0&quot;</span><br><span class="line">    android:toDegrees=&quot;45&quot;</span><br><span class="line">    android:duration=&quot;2000&quot;</span><br><span class="line">    /&gt;</span><br></pre></td></tr></table></figure></p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br></pre></td><td class="code"><pre><span class="line">  /**补间动画*/</span><br><span class="line">private ImageView mIvTweened;</span><br><span class="line">mIvTweened = (ImageView) this.findViewById(R.id.iv_tween);</span><br><span class="line">// 淡入淡出</span><br><span class="line">//Animation animation = AnimationUtils.loadAnimation(this, R.anim.scale);</span><br><span class="line">mIvTweened.startAnimation(animation);</span><br></pre></td></tr></table></figure>
<p>(5) 组合动画<br><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br></pre></td><td class="code"><pre><span class="line">&lt;?xml version=&quot;1.0&quot; encoding=&quot;utf-8&quot;?&gt;</span><br><span class="line">&lt;set xmlns:android=&quot;http://schemas.android.com/apk/res/android&quot;&gt;</span><br><span class="line">  &lt;alpha</span><br><span class="line">      android:fromAlpha=&quot;0.0&quot;</span><br><span class="line">      android:toAlpha=&quot;1.0&quot;</span><br><span class="line">      android:duration=&quot;2000&quot;</span><br><span class="line">      android:interpolator=&quot;@android:anim/accelerate_decelerate_interpolator&quot;/&gt;</span><br><span class="line">  &lt;rotate</span><br><span class="line">      android:pivotX=&quot;50%&quot;</span><br><span class="line">      android:pivotY=&quot;50%&quot;</span><br><span class="line">      android:drawable=&quot;@color/md_green_A700&quot;</span><br><span class="line">      android:fromDegrees=&quot;0.0&quot;</span><br><span class="line">      android:toDegrees=&quot;45&quot;</span><br><span class="line">      android:duration=&quot;2000&quot;</span><br><span class="line">      /&gt;</span><br><span class="line">  &lt;scale</span><br><span class="line">      android:fromXScale=&quot;0.0&quot;</span><br><span class="line">      android:toXScale=&quot;1.0&quot;</span><br><span class="line">      android:fromYScale=&quot;0.0&quot;</span><br><span class="line">      android:toYScale=&quot;1.0&quot;</span><br><span class="line">      android:pivotX=&quot;50%&quot;</span><br><span class="line">      android:pivotY=&quot;50%&quot;</span><br><span class="line">      android:duration=&quot;2000&quot;</span><br><span class="line">      /&gt;</span><br><span class="line">  &lt;translate</span><br><span class="line">      android:fromXDelta=&quot;0.0&quot;</span><br><span class="line">      android:toXDelta=&quot;100.0&quot;</span><br><span class="line">      android:toYDelta=&quot;100.0&quot;</span><br><span class="line">      android:fromYDelta=&quot;0.0&quot;</span><br><span class="line">      android:duration=&quot;2000&quot;</span><br><span class="line">      android:interpolator=&quot;@android:anim/accelerate_interpolator&quot;</span><br><span class="line">      /&gt;</span><br><span class="line">&lt;/set&gt;</span><br></pre></td></tr></table></figure></p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br></pre></td><td class="code"><pre><span class="line">  /**补间动画*/</span><br><span class="line">private ImageView mIvTweened;</span><br><span class="line">mIvTweened = (ImageView) this.findViewById(R.id.iv_tween);</span><br><span class="line">// 淡入淡出</span><br><span class="line">//Animation animation = AnimationUtils.loadAnimation(this, R.anim.set);</span><br><span class="line">mIvTweened.startAnimation(animation);</span><br></pre></td></tr></table></figure>
<p>(6) 属性解释</p>
<ul>
<li>android:interpolator主要作用是可以控制动画的变化速率。Android 系统已经为我们提供了一些Interpolator ，比如 accelerate_decelerate_interpolator，accelerate_interpolator等。</li>
<li>pivot决定了当前动画执行的参考位置。pivot 这个属性主要是在translate 和 scale 动画中，这两种动画都牵扯到view 的“物理位置“发生变化，所以需要一个参考点。而pivotX和pivotY就共同决定了这个点；它的值可以是float或者是百分比数值。</li>
</ul>
<table>
<thead>
<tr>
<th style="text-align:center">pivotX取值</th>
<th style="text-align:center">含义</th>
</tr>
</thead>
<tbody>
<tr>
<td style="text-align:center">10</td>
<td style="text-align:center">距离动画所在view自身左边缘10像素</td>
</tr>
<tr>
<td style="text-align:center">10%</td>
<td style="text-align:center">距离动画所在view自身左边缘 的距离是整个view宽度的10%</td>
</tr>
<tr>
<td style="text-align:center">10%p</td>
<td style="text-align:center">距离动画所在view父控件左边缘的距离是整个view宽度的10%</td>
</tr>
</tbody>
</table>
<ol start="3">
<li>属性动画(Attribute Animation)<br>属性动画，顾名思义它是对于对象属性的动画。因此，所有补间动画的内容，都可以通过属性动画实现。<br>属性动画使用方法:<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br></pre></td><td class="code"><pre><span class="line">/**</span><br><span class="line"> * 属性动画</span><br><span class="line"> */</span><br><span class="line">private void attrAnimation() &#123;</span><br><span class="line">  // 淡入淡出</span><br><span class="line">  //ObjectAnimator objectAnimator = ObjectAnimator.ofFloat(mIvAttr, &quot;alpha&quot;, 0.0f, 0.5f, 0.8f, 1.0f);</span><br><span class="line">  //objectAnimator.setDuration(2000);</span><br><span class="line">  //objectAnimator.start();</span><br><span class="line">  // 位移</span><br><span class="line">  /*ObjectAnimator objectAnimatorX = ObjectAnimator.ofFloat(mIvAttr, &quot;translationX&quot;, 100, 300);</span><br><span class="line">  ObjectAnimator objectAnimatorY = ObjectAnimator.ofFloat(mIvAttr, &quot;translationY&quot;, 100, 300);</span><br><span class="line">  AnimatorSet animatorSet = new AnimatorSet();</span><br><span class="line">  // 同时播放</span><br><span class="line">  //animatorSet.playTogether(objectAnimatorX, objectAnimatorY);</span><br><span class="line">  // 有序播放</span><br><span class="line">  animatorSet.playSequentially(objectAnimatorX, objectAnimatorY);</span><br><span class="line">  animatorSet.setDuration(5000);</span><br><span class="line">  animatorSet.start();*/</span><br><span class="line">  // 缩放</span><br><span class="line">  //ObjectAnimator objectAnimatorX = ObjectAnimator.ofFloat(mIvAttr, &quot;scaleX&quot;, 0.0f, 1.0f);</span><br><span class="line">  //ObjectAnimator objectAnimatorY = ObjectAnimator.ofFloat(mIvAttr, &quot;scaleY&quot;, 0.0f, 2.0f);</span><br><span class="line">  //AnimatorSet animatorSet = new AnimatorSet();</span><br><span class="line">  //animatorSet.playTogether(objectAnimatorX, objectAnimatorY);</span><br><span class="line">  //animatorSet.setDuration(5000);</span><br><span class="line">  //animatorSet.start();</span><br><span class="line">  // 旋转</span><br><span class="line">  ObjectAnimator objectAnimator = ObjectAnimator.ofFloat(mIvAttr, &quot;rotation&quot;, 0, 360);</span><br><span class="line">  objectAnimator.setDuration(2000);</span><br><span class="line">  objectAnimator.start();</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
</li>
</ol>
<p><a href="https://gitee.com/zaitingma/codes/2ovftr71muq3p90kydajl92" target="_blank" rel="noopener">代码下载</a></p>

      
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